PowerPath: Array Not Connected } are reported in Windows application event logs

Summary: Windows application event logs are reporting events from PowerPath { EMC Power Path Information: App Fingerprint: Info: Feature Enabled Array Not Connected } every hour.

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Symptoms

After upgrading or installing PowerPath for Windows v6.3, information events appear in the application event logs every hour. 

APPLICATION EVENT LOGS:
 
    11/22/2018 6:26 PM    Information       [HOSTNAME]    2    EmcPowerPathService    EMC Power Path Information:  App Fingerprint: Info:  Feature Enabled    Array Not Connected
    11/22/2018 5:26 PM    Information       [HOSTNAME]    2    EmcPowerPathService    EMC Power Path Information:  App Fingerprint: Info:  Feature Enabled    Array Not Connected
    11/22/2018 4:26 PM    Information       [HOSTNAME]    2    EmcPowerPathService    EMC Power Path Information:  App Fingerprint: Info:  Feature Enabled    Array Not Connected



MSI LOGS OF POWERPATH INSTALLATION:
 
MSI (s) (10:10) [05:00:27:747]: Executing op: RegOpenKey(Root=-2147483646,Key=SYSTEM\CurrentControlSet\Services\EmcPowSrv\AppFingerprint,,BinaryType=1,,)
MSI (s) (10:10) [05:00:27:747]: Executing op: RegAddValue(Name=Sqlservr_D,Value=[~][~],)
WriteRegistryValues: Key: \SYSTEM\CurrentControlSet\Services\EmcPowSrv\AppFingerprint, Name: Sqlservr_D, Value: [~][~]
MSI (s) (10:10) [05:00:27:747]: Executing op: RegAddValue(Name=Sqlservr_L,Value=[~][~],)
WriteRegistryValues: Key: \SYSTEM\CurrentControlSet\Services\EmcPowSrv\AppFingerprint, Name: Sqlservr_L, Value: [~][~]
MSI (s) (10:10) [05:00:27:747]: Executing op: RegAddValue(Name=Exc_Wrk_D,Value=[~][~],)
WriteRegistryValues: Key: \SYSTEM\CurrentControlSet\Services\EmcPowSrv\AppFingerprint, Name: Exc_Wrk_D, Value: [~][~]
MSI (s) (10:10) [05:00:27:747]: Executing op: RegAddValue(Name=Exc_Wrk_L,Value=[~][~],)
WriteRegistryValues: Key: \SYSTEM\CurrentControlSet\Services\EmcPowSrv\AppFingerprint, Name: Exc_Wrk_L, Value: [~][~]



Cause

These events occur when PowerPath is not able to recognize the APP FINGERPRINT enabled on the array end. It then reports the information event: 
EMC Power Path Information:  App Fingerprint: Info:  Feature Enabled    Array Not Connected

PowerPath is looking for the VMAX3 Symmetrix Hypermax code on which the APP FINGERPRINT feature is installed.

APP FINGERPRINT is a feature that is developed on Symmetrix VMAX arrays. The VMAX development team did not make this feature globally available due to some issues with qualification. The GA date for the Hypermax operating system was then delayed due to the need for additional testing. This may cause PowerPath to report an information event stating that the array which has APP FINGERPRINT feature is not connected.

Resolution

You can ignore these events, as they do not cause any issues to the environment. 
Article Properties
Article Number: 000160198
Article Type: Solution
Last Modified: 17 Oct 2025
Version:  6
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